Metadata: Local Improvement District Boundaries

Local Improvement District Boundaries

Category Transportation - Right of Way Mgmt
Feature Dataset Name STAND-ALONE
Database Type SDE
Originator City of Portland
Bureau Bureau of Transportation
Publication Date
Abstract A Local Improvement District (LID) is a method by which a group of property owners can share in the cost of infrastructure improvements, most commonly for transportation and stormwater. This involves improving the street, building sidewalks, and installing a stormwater management system. An LID can also be used to install sidewalks on existing streets that previously have been accepted for maintenance by the City.  Financing is offered for up to 20 years, with the first payment not due until after the project is complete.LIDs are most commonly used to improve unpaved streets.  If an LID is formed, the City manages the design and construction of the project, and property owners do not pay until the work is complete.  Streets can also be improved under a permit job, in which case the project is privately managed and financed up front by property owners.  LIDs have also been successfully used to provide sanitary sewer, water main improvements, traffic signal and utility undergrounding improvements in conjunction with street improvements for economies of scale to provide comprehensive and complete infrastructure solutions to neighborhoods.
Purpose For mapping the boundaries of the Local Improvement Districts in Portland.
Supplemental Information
Last Dataset Update 10/05/2023 17:16
Last Source Update 10/05/2023 10:51
Maintenance/Update Frequency As needed
Extent Multnomah County
Data Type Vector
Shape Type Polygon
Feature Count 68
Horizontal Position Accuracy
Horizontal Position Accuracy Link Taxlots
Progress Complete
North Bounding Coordinate 730009.311022982
South Bounding Coordinate 658238.029525116
East Bounding Coordinate 7689895.46476054
West Bounding Coordinate 7616859.17799781
Theme Keyword(s) PBOT, improvement, cost, infrastructure, street
Theme Keyword Thesaurus None
Place Keyword(s) Portland, Multnomah County, Washington County, Clackamas County, Oregon
Place Keyword Thesaurus None
Access Constraints Available for Public Use
Use Constraints These data are distributed under the terms of the City of Portland Data Distribution Policy. Care was taken in the creation of this data but it is provided "as is".

The City of Portland cannot accept any responsibility for errors, omissions, or positional accuracy.
Source Dataset Type Personal Geodatabase
Output Geodatabase EGH_Public
Distribution Grid: State plane coordinate system 1983(91).
Units: International feet
Datum: North American Datum of 1983/1991 (HPGN)
Liability: The information in this file was derived from digital databases on the City of Portland GIS. Care was taken in the creation of this file. The City cannot accept any responsibility for errors, omissions, or positional accuracy. There are no warranties, expressed or implied.
Format: Shapefile or File Geodatabase Feature Class - Data will be provided via City of Portland FTP Site.
Online Resource:
Online Instructions: City of Portland Public/Open Data is distributed via the PortlandMaps Open Data Site - Data not available on the PortlandMaps Open Data site can be requested by contacting the City of Portland CGIS Group -
Transfer Size: varies
SPCS Zone Identifier: 5076
PBOT GIS Support
1120 SW Fifth Ave., Suite 1331
Portland, OR 97204

City of Portland - PBOT
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Web Services

Service Description Feature Access Layer
PBOT_DefaultLayers This service includes an array of asset, permitting, planning and project data to serve as a general reference for PBOT staff working remotely. Dynamic LID Boundaries
PBOT_Planning This service includes data related to Portland Bureau of Transportation (PBOT) planning activities, including policy classifications, area master plans, and planned transportation projects. Dynamic LID Boundaries

Attribute Tables & Domains

Table Description
Table Jurisdiction
Column Sort Column Name Column Alias Column Type Column Size Domain Value(s) Column Description
1 Name Name String 50
1 LID_Status LID_Status String 50
1 ProjectID ProjectID Integer 4
1 LID_Comment LID_Comment String 50